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  • Title: Growth, structural, optical and thermal properties of gamma-glycine crystal.
    Author: Balakrishnan T, Babu RR, Ramamurthi K.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2008 Apr; 69(4):1114-8. PubMed ID: 17689138.
    Abstract:
    Single crystals of gamma-glycine were grown from a mixture of glycine, water and lithium bromide. Single crystal X-ray diffraction analysis confirmed the growth of gamma-glycine phase. Presence of various functional groups of gamma-glycine was identified by FTIR spectrum. Optical absorbance spectrum recorded in the wavelength range of UV-vis-NIR revealed that this crystal has good optical transparency in the range 250-1500 nm. Vickers microhardness values were estimated on the prominent (100) face. Thermogravimetric and differential scanning calorimetric analyses were carried out to study the thermal properties of gamma-glycine. Second harmonic generation efficiency of the crystal measured by Kurtz's powder method using Nd:YAG laser is about three times that of KDP.
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